Electric switch lock



Patented Jan. l2, 1926.

' UNITED" STATES, "PA-Tani" OFFICE;

QLOUIE CLARK nurcnmson, or MONTGOMERY, ALABAMA, ASSIGNOR OEI'TWENTY ONE-E'UNDREDTHS '10 BENJAMIN B. CARTER AND THIRTY-FIVE ONE-HUN 'nnnnrns TQ THOMAS C; vnnnnwoon, Born on GARDENA, CALIFORNIA.

I anaemic Y swrrcn LOCK.

' fa ueau n filed lune 14,1924; Seria1No. 720,133.f

To'all whom it may concern:

Be it known that I, LoUI-E- C. HUTQHIN- soN,'a citizen of the United States, reslding at Montgomery, in the county'or' Montgom- 858 cry' and State of 'Alabama', have invented certain newand useful Improvements in Electric Switch Locks; and I do hereby declare the following to be a full, clear, and exact'description' of'the invention, such as will enable others skilled in the art towhlch it appertains to make and use the same.

The object of this invention is to prevent the theft or the unauthorized use of amotor'vehicle by .interposing a switch'in the circuit of the ignition system and. providing said switch with fa lock mechamsm whereby when the switch is ad]usted to I break the circuit it' may. be locked andthereby prevent. surreptitious approprlatlon of the vehicle for any purpose.

Other objects and advantages willbe ap parent and suggest themselves .as the nature of the invention is understood.

While the drawings illustrate an embodiment of the invention it is to be understood that in adapting the same to meet different conditions andv requirements, various changes in the form, proportion -and minor details" of construction may beresorted to without departing from the spirit of the invention. 1

. Referringto the'accompanyingidrawings forming apart of the applicatlon:

Figure 1'is'a detail view of a motor vehicle switch lock embodying the invention,

' Figure 2 is a top plan view'thereof,

Figure 3 is a detail 'sectional' vlew on the line 3-3 of Figure 2, and

Figure 4' is'a sectional detail on the line 4-4 -of Figure 3.

-embodying the invention; The numeral 2 designates the housing-which encloses the operating parts, the same being cup-shaped 9 by means of a cover 3 which-l is held in place by bolts i which also serve to secure'the' housing-and cover to the floor 1. The cover 3- has a central opening and a tubular extension 5 in line with the opening and form- Corresponding like parts are referred r ,to in the followingdescriptlon and des1g-.-,

motor vehiclelto which is attached a switch lock:

and outwardly'flanged at its top and closed inga casingto receive the lo ck medhanism.

A cap 6 closes the lower end of the tubular A helical spring '9 surrounding the'stem 7 and'confined between the plunger 8 and cap 6 normally forces the plunger 8 upwardly.

spring actuated lock bolt 10 is mounted 1n the plunger 8 and isjadapted to engage I an opening 11 in a side of the casing 5 and hold the plunger depressed when the switch is open, andthe circuit broken.- A key operated barrel 12 is mounted in the plunger 8 and maybe of any preferred construction common in lock mechanism, and enables the lock bolt 10 to be actuated by means of the key 13. Y a i The switch mechanism comprises spring blades 14 which are connected to the cover 3 by bolts or blndlng posts 15 to which are attached the lead wires 16. Acontact 17 is attached to the lower end of'the-stem 7 and electrically connects the blades 14 when the plunger 8 iselevated and when said plunger 1s depressed the contact 17 is lowered so as .to clear the blades 14, as indicated by the dotted lines in Figure 3, thereby breaking I the circuit and preventing propriation of the vehicle,

'What is-claimed is M 1. A switch lock comprisinga supporting member, said supporting member having an extension, a lock device rotatably and slidably mounted in said extension, 'a contact carried by the lock device beyond one Lend unauthorized '1 apacting with the first mentioned, contact.

2. A swit'ch lock comprising a supporting I member, said supporting member having an extension,- a lock device rotatably and slidablymounted in saidextension, a contact carried by the glock, device beyond one end of the extension, contacts carried by said member outwardly of the extension and coacting with the first mentioned contact, said locking device having a laterally movable bolt,. and said extension having a keeper opening engageable by said bolt. 3; A switch lock comprising'a supporting member, said supporting member having an extens1on,.a lock device movable 1n sald ex- 5 .of .the extension, contacts carried by said- 'member outwardly of the extension and e0 tension, :1 contact carried by the lock device beyond one end of the extension, ,contacts carrieq by said member outwardly of the extension and coacting with the first-mentioned contact, said locking device havin a laterally'movable bolt, and said extension having a keeper opening engageable by bolt, a cap closing one end of said extension,

an'doan expansive spring engaging said cap LOUIE CLARK HUTCHINS ON. 

